The Principles of Psychology is an 1890 book about psychology by William James, an American philosopher and psychologist who trained to be a physician before going into psychology. There are four methods from James' book: stream of consciousness (James' most famous psychological metaphor); emotion (later known as the James–Lange theory); habit (human habits are constantly formed to achieve certain results); and will (through James' personal experiences in life).

The openings of The Principles of Psychology presented what was known at the time of writing about the localization of functions in the brain: how each sense seemed to have a neural center to which it reported and how varied bodily motions have their sources in other centers.

The particular hypotheses and observations on which James relied are now very dated, but the broadest conclusion to which his material leads is still valid, which was that the functions of the "lower centers" (beneath the cerebrum) become increasingly specialized as one moves from reptiles, through ever more intelligent mammals, to inhumans while the functions of the cerebrum itself become increasingly flexible and less localized as one moves along the same continuum.

James also discussed experiments on illusions (optical, auditory, etc.) and offered a physiological explanation for many of them, including that "the brain reacts by paths which previous experiences have worn, and makes us usually perceive the probable thing, i.e. the thing by which on previous occasions the reaction was most frequently aroused." Illusions are thus a special case of the phenomenon of habit.

In the use of the comparative method, James wrote, "instincts of animals are ransacked to throw light on our own...."[1] By this light, James dismisses the platitude that "man differs from lower creatures by the almost total absence of instincts".[2] There is no such absence, so the difference must be found elsewhere.

James believed that humans wielded far more impulses than other creatures. Impulses which, when observed out of their greater context, may have appeared just as automatic as the most basic of animal instincts. However, as man experienced the results of his impulses, and these experiences evoked memories and expectations, those very same impulses became gradually refined.[3]

By this reasoning, William James arrived at the conclusion that in any animal with the capacity for memory, association, and expectation, behavior is ultimately expressed as a synthesis of instinct and experience, rather than just blind instinct alone.[4]

The Principles of Psychology covered a large number of topics, but some topics stand out as being more useful and applicable than others, particularly the sections on stream of consciousness, emotion, habit, and will.

Stream of consciousness is arguably James' most famous psychological metaphor.[5] He argued that human thought can be characterized as a flowing stream, which was an innovative concept at the time due to the prior argument being that human thought was more so like a distinct chain, he also believed that humans can never experience exactly the same thought or idea more than once. In addition to this, he viewed consciousness as completely continuous.

James introduced a new theory of emotion (later known as the James–Lange theory), which argued that an emotion is instead the consequence rather than the cause of the bodily experiences associated with its expression;[5] in other words, a stimulus causes a physical response and an emotion follows the response. This theory has received criticism throughout the years since its introduction, but regardless, it still has its merits.

Human habits are constantly formed to achieve certain results because of one's strong feelings of wanting or wishing for something. James emphasized the importance and power of human habit and proceeded to draw a conclusion. James noted that the laws of habit formation are unbiased, habits are capable of causing either good or bad actions. And once either a good or bad habit has begun to be established, it is very difficult to change.[5]

Will is the final chapter of The Principles of Psychology, which was through James' own personal experiences in life. There was one question that troubled James during his crisis, which was whether or not free will existed.[5] "The most essential achievement of the will,... when it is most 'voluntary', is to attend to a difficult object and hold it fast before the mind..." Effort of attention is thus the essential phenomenon of will."[5]

The Principles of Psychology was a vastly influential textbook which summarized the field of psychology through the time of its publication. Psychology was beginning to gain popularity and acclaim in the United States at this time, and the compilation of this textbook only further solidified psychology's credibility as a science. Philosopher Helmut R. Wagner writes that most of the book's contents are now outdated, but that it still contains insights of interest.[6]

^James, William (1890-01-01). The principles of psychology. New York : Holt. p. 194. So it has come to pass that the instincts of animals are ransacked to throw light on our own; and that the reasoning faculty of bees and ants, the minds of savages, infants, madmen, idiots, and the deaf and blind, criminals, and eccentrics, are all invoked in support of this or that special theory about some part of our own mental life.

^James, William (1893-01-01). Psychology. Henry Holt. p. 395. Nothing is commoner than the remark that man differs from lower creatures by the almost total absence of instincts, and the assumption of their work in him by 'reason.'

^James, William (1893-01-01). Psychology. Henry Holt. p. 395. Man has a far greater variety of impulses than any lower animal; and any one of these impulses taken in itself, is as 'blind' as the lowest instinct can be; but owing to man's memory, power of reflection, and power of inference, they come each one to be felt by him after he has once yielded to them and experienced their results, in connection with a foresight of those results.

^James, William (1893-01-01). Psychology. Henry Holt. p. 396. It is plain then that, no matter how well endowed an animal may originally be in the way of instincts, his resultant actions will be much modified if the instincts combine with experience, if in addition to impulses he have memories associations inferences and expectations on any considerable scale.

1.
William James
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William James was an American philosopher and psychologist who was also trained as a physician. A Review of General Psychology survey, published in 2002, ranked James as the 14th most cited psychologist of the 20th century and he also developed the philosophical perspective known as radical empiricism. James work has influenced intellectuals such as Émile Durkheim, W. E. B, du Bois, Edmund Husserl, Bertrand Russell, Ludwig Wittgenstein, Hilary Putnam, and Richard Rorty, and has even influenced Presidents, such as Jimmy Carter. Born into a family, James was the son of the Swedenborgian theologian Henry James Sr. James wrote widely on topics, including epistemology, education, metaphysics, psychology, religion. William James was born at the Astor House in New York City and he was the son of Henry James Sr. a noted and independently wealthy Swedenborgian theologian well acquainted with the literary and intellectual elites of his day. William James received an eclectic trans-Atlantic education, developing fluency in both German and French, education in the James household encouraged cosmopolitanism. The family made two trips to Europe while William James was still a child, setting a pattern that resulted in thirteen more European journeys during his life. In his early adulthood, James suffered from a variety of ailments, including those of the eyes, back, stomach. Two younger brothers, Garth Wilkinson and Robertson, fought in the Civil War, the other three siblings all suffered from periods of invalidism. He took up studies at Harvard Medical School in 1864. His studies were interrupted once again due to illness in April 1867 and he traveled to Germany in search of a cure and remained there until November 1868, at that time he was 26 years old. During this period, he began to publish, reviews of his works appeared in periodicals such as the North American Review. James finally earned his M. D. degree in June 1869, what he called his soul-sickness would only be resolved in 1872, after an extended period of philosophical searching. He married Alice Gibbens in 1878, in 1882 he joined the Theosophical Society. Jamess time in Germany proved intellectually fertile, helping him find that his interests lay not in medicine but in philosophy. Later, in 1902 he would write, I originally studied medicine in order to be a physiologist, I never had any philosophic instruction, the first lecture on psychology I ever heard being the first I ever gave. In 1875–1876, James, Henry Pickering Bowditch, Charles Pickering Putnam, G. Stanley Hall, Henri Bergson and Sigmund Freud

2.
Psychology
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Psychology is the science of behavior and mind, embracing all aspects of conscious and unconscious experience as well as thought. It is a discipline and a social science which seeks to understand individuals and groups by establishing general principles. In this field, a professional practitioner or researcher is called a psychologist and can be classified as a social, behavioral, Psychologists explore behavior and mental processes, including perception, cognition, attention, emotion, intelligence, phenomenology, motivation, brain functioning, and personality. This extends to interaction between people, such as relationships, including psychological resilience, family resilience, and other areas. Psychologists of diverse orientations also consider the unconscious mind, Psychologists employ empirical methods to infer causal and correlational relationships between psychosocial variables. Psychology has been described as a hub science, with psychological findings linking to research and perspectives from the sciences, natural sciences, medicine, humanities. By many accounts psychology ultimately aims to benefit society, the majority of psychologists are involved in some kind of therapeutic role, practicing in clinical, counseling, or school settings. Many do scientific research on a range of topics related to mental processes and behavior. The word psychology derives from Greek roots meaning study of the psyche, the Latin word psychologia was first used by the Croatian humanist and Latinist Marko Marulić in his book, Psichiologia de ratione animae humanae in the late 15th century or early 16th century. In 1890, William James defined psychology as the science of mental life and this definition enjoyed widespread currency for decades. Also since James defined it, the more strongly connotes techniques of scientific experimentation. Folk psychology refers to the understanding of people, as contrasted with that of psychology professionals. The ancient civilizations of Egypt, Greece, China, India, historians note that Greek philosophers, including Thales, Plato, and Aristotle, addressed the workings of the mind. As early as the 4th century BC, Greek physician Hippocrates theorized that mental disorders had physical rather than supernatural causes, in China, psychological understanding grew from the philosophical works of Laozi and Confucius, and later from the doctrines of Buddhism. This body of knowledge involves insights drawn from introspection and observation and it frames the universe as a division of, and interaction between, physical reality and mental reality, with an emphasis on purifying the mind in order to increase virtue and power. Chinese scholarship focused on the advanced in the Qing Dynasty with the work of Western-educated Fang Yizhi, Liu Zhi. Distinctions in types of awareness appear in the ancient thought of India, a central idea of the Upanishads is the distinction between a persons transient mundane self and their eternal unchanging soul. Divergent Hindu doctrines, and Buddhism, have challenged this hierarchy of selves, yoga is a range of techniques used in pursuit of this goal

3.
Henry Holt and Company
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Henry Holt and Company is an American book publishing company, in New York City. One of the oldest publishers in the United States, it was founded in 1866 by Henry Holt and Frederick Leypoldt. Currently, the company publishes in the fields of American and international fiction, biography, history and politics, science, psychology, in the US, it operates under Macmillan Publishers. The company publishes several imprints including Metropolitan Books, Times Books, Owl Books. It also publishes under the name of Holt Paperbacks, from 1951 to 1985, Holt published the magazine Field & Stream. Holt merged with Rinehart & Company of New York and the John C, Winston Company of Philadelphia in 1960 to become Holt, Rinehart and Winston. The Wall Street Journal reported on March 1 that Holt stockholders had approved the merger, Henry Holt is the surviving concern, but will be known as Holt, Rinehart, Winston, Inc. CBS purchased the company in 1967, the educational publishing arm, which retained the Holt, Rinehart and Winston name, was sold to Harcourt. Holt McDougal Official website Media related to Henry Holt and Company at Wikimedia Commons

4.
Hardcover
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A hardcover or hardback book is one bound with rigid protective covers. It has a flexible, sewn spine which allows the book to lie flat on a surface when opened, following the ISBN sequence numbers, books of this type may be identified by the abbreviation Hbk. Hardcover books are printed on acid-free paper, and are much more durable than paperbacks. Hardcover books are more costly to manufacture. If brisk sales are anticipated, an edition of a book is typically released first. Some publishers publish paperback originals if slow hardback sales are anticipated, for very popular books these sales cycles may be extended, and followed by a mass market paperback edition typeset in a more compact size and printed on shallower, less hardy paper. In the past the release of an edition was one year after the hardback. It is very unusual for a book that was first published in paperback to be followed by a hardback, an example is the novel The Judgment of Paris by Gore Vidal, which had its revised edition of 1961 first published in paperback, and later in hardcover. Hardcover books are sold at higher prices than comparable paperbacks. Hardcovers typically consist of a block, two boards, and a cloth or heavy paper covering. The pages are sewn together and glued onto a flexible spine between the boards, and it too is covered by the cloth, a paper wrapper, or dust jacket, is usually put over the binding, folding over each horizontal end of the boards. On the folded part, or flap, over the front cover is generally a blurb, the back flap is where the biography of the author can be found. Reviews are often placed on the back of the jacket, bookbinding Paperback How to make a simple Hardcover book

5.
Paperback
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A paperback is a type of book characterized by a thick paper or paperboard cover, and often held together with glue rather than stitches or staples. In contrast, hardcover or hardback books are bound with cardboard covered with cloth, inexpensive books bound in paper have existed since at least the 19th century in such forms as pamphlets, yellowbacks, dime novels, and airport novels. Modern paperbacks can be differentiated by size, in the US there are mass-market paperbacks and larger, more durable trade paperbacks. In the UK, there are A-format, B-format, and the largest C-format sizes, Paperback editions of books are issued when a publisher decides to release a book in a low-cost format. Cheaper, lower quality paper, glued bindings, and the lack of a cover may contribute to the lower cost of paperbacks. Paperbacks can be the medium when a book is not expected to be a major seller or where the publisher wishes to release a book without putting forth a large investment. Examples include many novels, and newer editions or reprintings of older books, first editions of many modern books, especially genre fiction, are issued in paperback. Best-selling books, on the hand, may maintain sales in hardcover for an extended period in order to reap the greater profits that the hardcovers provide. These paper bound volumes were offered for sale at a fraction of the historic cost of a book, the Routledges Railway Library series of paperbacks remained in print until 1898, and offered the traveling public 1,277 unique titles. The German-language market also supported examples of cheap books, Bernhard Tauchnitz started the Collection of British. These inexpensive, paperbound editions, a precursor to mass-market paperbacks. Reclam published Shakespeare in this format from October 1857 and went on to pioneer the mass-market paper-bound Universal-Bibliothek series from 10 November 1867, the German publisher Albatross Books revised the 20th-century mass-market paperback format in 1931, but the approach of World War II cut the experiment short. The first released book on Penguins 1935 list was André Maurois Ariel, Lane intended to produce inexpensive books. He purchased paperback rights from publishers, ordered large print runs to keep prices low. Booksellers were initially reluctant to buy his books, but when Woolworths placed a large order, after that initial success, booksellers showed more willingness to stock paperbacks, and the name Penguin became closely associated with the word paperback. In 1939, Robert de Graaf issued a similar line in the United States, the term pocket book became synonymous with paperback in English-speaking North America. In French, the term livre de poche was used and is still in use today, de Graaf, like Lane, negotiated paperback rights from other publishers, and produced many runs. His practices contrasted with those of Lane by his adoption of illustrated covers aimed at the North American market, in order to reach an even broader market than Lane, he used distribution networks of newspapers and magazines, which had a lengthy history of being aimed at mass audiences

6.
Emotion
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Emotion, generally speaking, is any relatively brief conscious experience characterized by intense mental activity and a high degree of pleasure or displeasure. Scientific discourse has drifted to other meanings and there is no consensus on a definition, Emotion is often intertwined with mood, temperament, personality, disposition, and motivation. In some theories, cognition is an important aspect of emotion and those acting primarily on the emotions they are feeling may seem as if they are not thinking, but mental processes are still essential, particularly in the interpretation of events. For example, the realization of our believing that we are in a dangerous situation, other theories, however, claim that emotion is separate from and can precede cognition. According to some theories, they are states of feeling that result in physical and psychological changes that influence our behavior, the physiology of emotion is closely linked to arousal of the nervous system with various states and strengths of arousal relating, apparently, to particular emotions. Emotion is also linked to behavioral tendency, extroverted people are more likely to be social and express their emotions, while introverted people are more likely to be more socially withdrawn and conceal their emotions. Emotion is often the force behind motivation, positive or negative. Nor is the emotion an entity that causes these components, Emotions involve different components, such as subjective experience, cognitive processes, expressive behavior, psychophysiological changes, and instrumental behavior. More recently, emotion is said to consist of all the components, the different components of emotion are categorized somewhat differently depending on the academic discipline. In psychology and philosophy, emotion typically includes a subjective, conscious experience characterized primarily by psychophysiological expressions, biological reactions, a similar multicomponential description of emotion is found in sociology. For example, Peggy Thoits described emotions as involving physiological components, cultural or emotional labels, expressive body actions, the numerous theories that attempt to explain the origin, neurobiology, experience, and function of emotions have only fostered more intense research on this topic. Current areas of research in the concept of emotion include the development of materials that stimulate, in addition PET scans and fMRI scans help study the affective processes in the brain. Emotions can be defined as a positive or negative experience that is associated with a pattern of physiological activity. Emotions produce different physiological, behavioral and cognitive changes, the original role of emotions was to motivate adaptive behaviors that in the past would have contributed to the survival of humans. Emotions are responses to significant internal and external events, the word emotion dates back to 1579, when it was adapted from the French word émouvoir, which means to stir up. The term emotion was introduced into academic discussion to replace passion, according to one dictionary, the earliest precursors of the word likely dates back to the very origins of language. The modern word emotion is heterogeneous In some uses of the word, on the other hand, emotion can be used to refer to states that are mild and to states that are not directed at anything. One line of research looks at the meaning of the word emotion in everyday language

7.
Will and testament
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For the devolution of property not disposed of by will, see inheritance and intestacy. Thus, the word will validly applies to personal and real property. A will may also create a testamentary trust that is only after the death of the testator. Throughout most of the world, disposal of an estate has been a matter of social custom, according to Plutarch, the written will was invented by Solon. Originally it was a device intended solely for men who died without an heir, the English phrase will and testament is derived from a period in English law when Old English and Law French were used side by side for maximum clarity. Other such legal doublets include breaking and entering and peace and quiet, the conception of the freedom of disposition by will, familiar as it is in modern England and the United States, both generally considered common law systems, is by no means universal. In fact, complete freedom is the rather than the rule. Civil law systems often put some restrictions on the possibilities of disposal, advocates for gays and lesbians have pointed to the inheritance rights of spouses as desirable for same-sex couples as well, through same-sex marriage or civil unions. Opponents of such advocacy rebut this claim by pointing to the ability of same-sex couples to disperse their assets by will, types of wills generally include, nuncupative - oral or dictated, often limited to sailors or military personnel. Holographic will - written in the hand of the testator, in many jurisdictions, the signature, self-proved - in solemn form with affidavits of subscribing witnesses to avoid probate. Notarial - will in public form and prepared by a civil-law notary, servicemans will - will of person in active-duty military service and usually lacking certain formalities, particularly under English law. Reciprocal/mirror/mutual/husband and wife wills - wills made by two or more parties that make similar or identical provisions in favor of each other, unsolemn will - will in which the executor is unnamed. Will in solemn form - signed by testator and witnesses, some jurisdictions recognize a holographic will, made out entirely in the testators own hand, or in some modern formulations, with material provisions in the testators hand. The distinctive feature of a holographic will is less that it is handwritten by the testator, in Louisiana this type of testament is called an Olographic or Mystic will. It must be written, dated, and signed in the handwriting of the testator. Although the date may appear anywhere in the testament, the testator must sign the testament at the end of the testament, any additions or corrections must also be entirely hand written to have effect. In England, the formalities of wills are relaxed for soldiers who express their wishes on active service, a minority of jurisdictions even recognize the validity of nuncupative wills, particularly for military personnel or merchant sailors. However, there are constraints on the disposition of property if such an oral will is used

8.
Sense
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A sense is a physiological capacity of organisms that provides data for perception. The senses and their operation, classification, and theory are overlapping topics studied by a variety of fields, most notably neuroscience, cognitive psychology, the nervous system has a specific sensory system or organ, dedicated to each sense. Humans have a multitude of senses, sight, hearing, taste, smell, and touch are the five traditionally recognized senses. However, what constitutes a sense is a matter of debate, leading to difficulties in defining what exactly a distinct sense is. Other animals also have receptors to sense the world around them, humans have a comparatively weak sense of smell and a stronger sense of sight relative to many other mammals while some animals may lack one or more of the traditional five senses. Some animals may also intake and interpret sensory stimuli in different ways. Some species of animals are able to sense the world in a way humans cannot, with some species able to sense electrical and magnetic fields. There is no agreement as to the number of senses because of differing definitions of what constitutes a sense. The senses are frequently divided into exteroceptive and interoceptive, Exteroceptive senses are senses that perceive the bodys own position, motion, external senses include the traditional five, sight, hearing, touch, smell and taste, as well as thermoception and possibly an additional weak magnetoception. Proprioceptive senses include nociception, equilibrioception, proprioception, interoceptive senses are senses that perceive sensations in internal organs. Non-human animals may possess senses that are absent in humans, such as electroreception and detection of polarized light, in Buddhist philosophy, Ayatana or sense-base includes the mind as a sense organ, in addition to the traditional five. This addition to the commonly acknowledged senses may arise from the psychological orientation involved in Buddhist thought, the mind considered by itself is seen as the principal gateway to a different spectrum of phenomena that differ from the physical sense data. This way of viewing the human sense system indicates the importance of internal sources of sensation and perception that complements our experience of the external world, there are two types of photoreceptors, rods and cones. Rods are very sensitive to light, but do not distinguish colors, cones distinguish colors, but are less sensitive to dim light. There is some disagreement as to whether this one, two or three senses. Neuroanatomists generally regard it as two senses, given that different receptors are responsible for the perception of color and brightness, the inability to see is called blindness. Blindness may result from damage to the eyeball, especially to the retina, damage to the nerve that connects each eye to the brain. Temporary or permanent blindness can be caused by poisons or medications, people with blindsight are usually not aware that they are reacting to visual sources, and instead just unconsciously adapt their behaviour to the stimulus

9.
Reptile
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Reptiles are tetrapod animals in the class Reptilia, comprising todays turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. The study of these traditional reptile orders, historically combined with that of amphibians, is called herpetology. Because some reptiles are more related to birds than they are to other reptiles. For this reason, many scientists prefer to consider the birds part of Reptilia as well. Some early examples include the lizard-like Hylonomus and Casineria, in addition to the living reptiles, there are many diverse groups that are now extinct, in some cases due to mass extinction events. In particular, the K–Pg extinction wiped out the pterosaurs, plesiosaurs, ornithischians, and sauropods, as well as species of theropods, crocodyliforms. Modern non-avian reptiles inhabit every continent with the exception of Antarctica, several living subgroups are recognized, Testudines, approximately 400 species, Sphenodontia,1 species, Squamata, over 9,600 species, Crocodilia,25 species, and Aves,10,000 species. Reptiles are tetrapod vertebrates, creatures that either have four limbs or, unlike amphibians, reptiles do not have an aquatic larval stage. As amniotes, reptile eggs are surrounded by membranes for protection and transport, many of the viviparous species feed their fetuses through various forms of placenta analogous to those of mammals, with some providing initial care for their hatchlings. In the 18th century, the reptiles were, from the outset of classification, the terms reptile and amphibian were largely interchangeable, reptile being preferred by the French. Josephus Nicolaus Laurenti was the first to use the term Reptilia for an expanded selection of reptiles. Today, the two groups are commonly treated under the same heading as herptiles. He subsequently proposed the names of Sauropsida and Ichthyopsida for the two groups. In 1866, Haeckel demonstrated that vertebrates could be divided based on their strategies, and that reptiles, birds. The terms Sauropsida and Theropsida were used again in 1916 by E. S, Goodrich to distinguish between lizards, birds, and their relatives on the one hand and mammals and their extinct relatives on the other. Goodrich supported this division by the nature of the hearts and blood vessels in each group, according to Goodrich, both lineages evolved from an earlier stem group, Protosauria in which he included some animals today considered reptile-like amphibians, as well as early reptiles. Watson observed that the first two groups diverged very early in history, so he divided Goodrichs Protosauria between them. He also reinterpreted Sauropsida and Theropsida to exclude birds and mammals, thus his Sauropsida included Procolophonia, Eosuchia, Millerosauria, Chelonia, Squamata, Rhynchocephalia, Crocodilia, thecodonts, non-avian dinosaurs, pterosaurs, ichthyosaurs, and sauropterygians

10.
Mammal
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Mammals are any vertebrates within the class Mammalia, a clade of endothermic amniotes distinguished from reptiles by the possession of a neocortex, hair, three middle ear bones and mammary glands. All female mammals nurse their young with milk, secreted from the mammary glands, Mammals include the largest animals on the planet, the great whales. The basic body type is a quadruped, but some mammals are adapted for life at sea, in the air, in trees. The largest group of mammals, the placentals, have a placenta, Mammals range in size from the 30–40 mm bumblebee bat to the 30-meter blue whale. With the exception of the five species of monotreme, all modern mammals give birth to live young, most mammals, including the six most species-rich orders, belong to the placental group. The largest orders are the rodents, bats and Soricomorpha, the next three biggest orders, depending on the biological classification scheme used, are the Primates, the Cetartiodactyla, and the Carnivora. Living mammals are divided into the Yinotheria and Theriiformes There are around 5450 species of mammal, in some classifications, extant mammals are divided into two subclasses, the Prototheria, that is, the order Monotremata, and the Theria, or the infraclasses Metatheria and Eutheria. The marsupials constitute the group of the Metatheria, and include all living metatherians as well as many extinct ones. Much of the changes reflect the advances of cladistic analysis and molecular genetics, findings from molecular genetics, for example, have prompted adopting new groups, such as the Afrotheria, and abandoning traditional groups, such as the Insectivora. The mammals represent the only living Synapsida, which together with the Sauropsida form the Amniota clade, the early synapsid mammalian ancestors were sphenacodont pelycosaurs, a group that produced the non-mammalian Dimetrodon. At the end of the Carboniferous period, this group diverged from the line that led to todays reptiles. Some mammals are intelligent, with some possessing large brains, self-awareness, Mammals can communicate and vocalize in several different ways, including the production of ultrasound, scent-marking, alarm signals, singing, and echolocation. Mammals can organize themselves into fission-fusion societies, harems, and hierarchies, most mammals are polygynous, but some can be monogamous or polyandrous. They provided, and continue to provide, power for transport and agriculture, as well as commodities such as meat, dairy products, wool. Mammals are hunted or raced for sport, and are used as model organisms in science, Mammals have been depicted in art since Palaeolithic times, and appear in literature, film, mythology, and religion. Defaunation of mammals is primarily driven by anthropogenic factors, such as poaching and habitat destruction, Mammal classification has been through several iterations since Carl Linnaeus initially defined the class. No classification system is accepted, McKenna & Bell and Wilson & Reader provide useful recent compendiums. Though field work gradually made Simpsons classification outdated, it remains the closest thing to a classification of mammals

11.
Illusion
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An illusion is a distortion of the senses, revealing how the brain normally organizes and interprets sensory stimulation. Though illusions distort reality, they are shared by most people. Illusions may occur with any of the senses, but visual illusions are the best-known. The emphasis on visual illusions occurs because vision often dominates the other senses, for example, individuals watching a ventriloquist will perceive the voice is coming from the dummy since they are able to see the dummy mouth the words. Some illusions are based on general assumptions the brain makes during perception and these assumptions are made using organizational principles, an individuals capacity for depth perception and motion perception, and perceptual constancy. Other illusions occur because of biological sensory structures within the body or conditions outside of the body within one’s physical environment. The term illusion refers to a form of sensory distortion. Unlike a hallucination, which is a distortion in the absence of a stimulus, for example, hearing voices regardless of the environment would be a hallucination, whereas hearing voices in the sound of running water would be an illusion. Mimes are known for a repertoire of illusions that are created by physical means, the mime artist creates an illusion of acting upon or being acted upon by an unseen object. These illusions exploit the audiences assumptions about the physical world, well-known examples include walls, climbing stairs, leaning, descending ladders, and pulling and pushing. An optical illusion is characterized by visually perceived images that are deceptive or misleading, therefore, the information gathered by the eye is processed by the brain to give, on the face of it, a percept that does not tally with a physical measurement of the stimulus source. The human brain constructs a world inside our head based on what it samples from the surrounding environment, however, sometimes it tries to organise this information it thinks best while other times it fills in the gaps. This way in which our brain works is the basis of an illusion, an auditory illusion is an illusion of hearing, the sound equivalent of an optical illusion, the listener hears either sounds which are not present in the stimulus, or impossible sounds. In short, audio illusions highlight areas where the ear and brain, as organic, makeshift tools. One example of an illusion is a Shepard tone. Interestingly, the areas activated during illusory tactile perception are similar to those activated during actual tactile stimulation. Tactile illusions can also be elicited through haptic technology and these illusory tactile objects can be used to create virtual objects. A temporal illusion is a distortion in the perception of time, in such cases, a person may momentarily perceive time as slowing down, stopping, speeding up, or running backwards

12.
Physiology
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Physiology is the scientific study of normal mechanisms, and their interactions, which operate within a living system. A sub-discipline of biology, its focus is in how organisms, organ systems, organs, cells, and biomolecules carry out the chemical or physical functions that exist in a living system. Given the size of the field, it is divided into, among others, animal physiology, plant physiology, cellular physiology, microbial physiology, bacterial physiology, and viral physiology. The Nobel Prize in Physiology or Medicine is awarded to those who make significant achievements in this discipline by the Royal Swedish Academy of Sciences. In medicine, a state is one occurring from normal body function, rather than pathologically. Physiological studies date back to the ancient civilizations of India and Egypt alongside anatomical studies, the study of human physiology as a medical field dates back to at least 420 BC to the time of Hippocrates, also known as the father of medicine. Hippocrates incorporated his belief called the theory of humours, which consisted of four basic substance, earth, water, air. Each substance is known for having a corresponding humour, black bile, phlegm, blood and yellow bile, Hippocrates also noted some emotional connections to the four humours, which Claudis Galenus would later expand on. The critical thinking of Aristotle and his emphasis on the relationship between structure and function marked the beginning of physiology in Ancient Greece. Like Hippocrates, Aristotle took to the theory of disease. Claudius Galenus, known as Galen of Pergamum, was the first to use experiments to probe the functions of the body, unlike Hippocrates though, Galen argued that humoral imbalances can be located in specific organs, including the entire body. His modification of this theory better equipped doctors to more precise diagnoses. Galen was also the founder of experimental physiology, and for the next 1,400 years, Galenic physiology was a powerful and influential tool in medicine. Jean Fernel, a French physician, introduced the term physiology, inspired in the work of Adam Smith, Milne-Edwards wrote that the body of all living beings, whether animal or plant, resembles a factory. Where the organs, comparable to workers, work incessantly to produce the phenomena that constitute the life of the individual, in more differentiated organisms, the functional labor could be apportioned between different instruments or systems. In 1858, Joseph Lister studied the cause of blood coagulation and inflammation that resulted after previous injuries and he later discovered and implemented antiseptics in the operating room, and as a result decreases death rate from surgery by a substantial amount. The Physiological Society was founded in London in 1876 as a dining club, the American Physiological Society is a nonprofit organization that was founded in 1887. The Society is, devoted to fostering education, scientific research, in 1891, Ivan Pavlov performed research on conditional reflexes that involved dogs saliva production in response to a plethora of sounds and visual stimuli

13.
Instinct
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Instinct or innate behavior is the inherent inclination of a living organism towards a particular complex behavior. Any behavior is if it is performed without being based upon prior experience. Sea turtles, newly hatched on a beach, will move toward the ocean. A kangaroo climbs into its mothers pouch upon being born, honeybees communicate by dancing in the direction of a food source without formal instruction. Other examples include animal fighting, animal behavior, internal escape functions. The absence of volitional capacity must not be confused with an inability to modify fixed action patterns, the role of instincts in determining the behavior of animals varies from species to species. The more complex the system of an animal, the greater is the role of the cerebral cortex and social learning. A comparison between a crocodile and an elephant illustrates how mammals for example are heavily dependent on social learning, lionesses and chimpanzees raised in zoos away from their birth mothers most often reject their own offspring because they have not been taught the skills of mothering. Such is not the case with species such as reptiles. In everyday speech, the instinct is often used to refer to intuition or even clairvoyance. Jean Henri Fabre, an entomologist, considered instinct to be any behavior which did not require cognition or consciousness to perform, Fabres inspiration was his intense study of insects, some of whose behaviors he wrongly considered fixed and not subject to environmental influence. Instinct as a concept fell out of favor in the 1920s with the rise of behaviorism and such thinkers as B. F. Skinner, which held that most significant behavior is learned. These beliefs, like Fabres belief that most behaviors were simply reflexive, an interest in innate behaviors arose again in the 1950s with Konrad Lorenz and Nikolaas Tinbergen, who made the distinction between instinct and learned behaviors. Our modern understanding of behavior in animals owes much to their work. For instance, there exists a sensitive period for a bird in which it learns the identity of its mother, Konrad Lorenz famously had a goose imprint on his boots. Thereafter the goose would follow whoever wore the boots, the identity of the gooses mother was learned, but the gooses behavior towards the boots was instinctive. The term instinct in psychology was first used in the 1870s by Wilhelm Wundt, by the close of the 19th century, most repeated behavior was considered instinctual. In a survey of the literature at that time, one researcher chronicled 4,000 human instincts, as research became more rigorous and terms better defined, instinct as an explanation for human behavior became less common

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Human
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Modern humans are the only extant members of Hominina tribe, a branch of the tribe Hominini belonging to the family of great apes. Several of these hominins used fire, occupied much of Eurasia and they began to exhibit evidence of behavioral modernity around 50,000 years ago. In several waves of migration, anatomically modern humans ventured out of Africa, the spread of humans and their large and increasing population has had a profound impact on large areas of the environment and millions of native species worldwide. Humans are uniquely adept at utilizing systems of communication for self-expression and the exchange of ideas. Humans create complex structures composed of many cooperating and competing groups, from families. Social interactions between humans have established a wide variety of values, social norms, and rituals. These human societies subsequently expanded in size, establishing various forms of government, religion, today the global human population is estimated by the United Nations to be near 7.5 billion. In common usage, the word generally refers to the only extant species of the genus Homo—anatomically and behaviorally modern Homo sapiens. In scientific terms, the meanings of hominid and hominin have changed during the recent decades with advances in the discovery, there is also a distinction between anatomically modern humans and Archaic Homo sapiens, the earliest fossil members of the species. The English adjective human is a Middle English loanword from Old French humain, ultimately from Latin hūmānus, the words use as a noun dates to the 16th century. The native English term man can refer to the species generally, the species binomial Homo sapiens was coined by Carl Linnaeus in his 18th century work Systema Naturae. The generic name Homo is a learned 18th century derivation from Latin homō man, the species-name sapiens means wise or sapient. Note that the Latin word homo refers to humans of either gender, the genus Homo evolved and diverged from other hominins in Africa, after the human clade split from the chimpanzee lineage of the hominids branch of the primates. The closest living relatives of humans are chimpanzees and gorillas, with the sequencing of both the human and chimpanzee genome, current estimates of similarity between human and chimpanzee DNA sequences range between 95% and 99%. The gibbons and orangutans were the first groups to split from the leading to the humans. The splitting date between human and chimpanzee lineages is placed around 4–8 million years ago during the late Miocene epoch, during this split, chromosome 2 was formed from two other chromosomes, leaving humans with only 23 pairs of chromosomes, compared to 24 for the other apes. There is little evidence for the divergence of the gorilla, chimpanzee. Each of these species has been argued to be an ancestor of later hominins

15.
Free will
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Free will is the ability to choose between different possible courses of action. It is closely linked to the concepts of responsibility, praise, guilt, sin and it is also connected with the concepts of advice, persuasion, deliberation, and prohibition. Traditionally, only actions that are freely willed are seen as deserving credit or blame, There are numerous different concerns about threats to the possibility of free will, varying by how exactly it is conceived, which is a matter of some debate. Some conceive free will to be the capacity to make choices in which the outcome has not been determined by past events, determinism suggests that only one course of events is possible, which is inconsistent with the existence of such free will. This problem has been identified in ancient Greek philosophy, and remains a focus of philosophical debate. In contrast, compatibilists hold that free will is compatible with determinism, compatibilists thus consider the debate between libertarians and hard determinists over free will vs determinism a false dilemma. Different compatibilists offer very different definitions of free will even means. Contemporary compatibilists instead identify free will as a capacity, such as to direct ones behavior in a way responsive to reason. The underlying questions are whether we have control over our actions, and if so, what sort of control and these questions predate the early Greek stoics, and some modern philosophers lament the lack of progress over all these millennia. On one hand, humans have a sense of freedom. On the other hand, a feeling of free will could be mistaken. The conflict between intuitively felt freedom and natural law arises when either causal closure or physical determinism is asserted, with causal closure, no physical event has a cause outside the physical domain, and with physical determinism, the future is determined entirely by preceding events. The puzzle of reconciling free will with a universe is known as the problem of free will or sometimes referred to as the dilemma of determinism. This dilemma leads to a dilemma as well, How are we to assign responsibility for our actions if they are caused entirely by past events. Compatibilists maintain that mental reality is not of itself causally effective, classical compatibilists have addressed the dilemma of free will by arguing that free will holds as long as we are not externally constrained or coerced. Modern compatibilists make a distinction between freedom of will and freedom of action, that is, separating freedom of choice from the freedom to enact it, given that humans all experience a sense of free will, some modern compatibilists think it is necessary to accommodate this intuition. Compatibilists often associate freedom of will with the ability to make rational decisions, a different approach to the dilemma is that of incompatibilists, namely, that if the world is deterministic then, our feeling that we are free to choose an action is simply an illusion. Metaphysical libertarianism is the form of incompatibilism which posits that determinism is false, yet even with physical indeterminism, arguments have been made against libertarianism in that it is difficult to assign Origination

16.
Phenomenon
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A phenomenon is any thing which manifests itself. Phenomena are often, but not always, understood as things that appear or experiences for a sentient being, the term came into its modern philosophical usage through Immanuel Kant, who contrasted it with the noumenon. In contrast to a phenomenon, a noumenon can not be directly observed, Kant was heavily influenced by Gottfried Wilhelm Leibniz in this part of his philosophy, in which phenomenon and noumenon serve as interrelated technical terms. In modern philosophical use, the phenomena has come to mean what is experienced is the basis of reality. He wrote that humans could infer only as much as their senses allowed, thus, the term phenomenon refers to any incident deserving of inquiry and investigation, especially events that are particularly unusual or of distinctive importance. According to The Columbia Encyclopedia, Modern philosophers have used phenomenon to designate what is apprehended before judgment is applied and this may not be possible if observation is theory laden. In scientific usage, a phenomenon is any event that is observable, however common it might be, even if it requires the use of instrumentation to observe, record, another example of scientific phenomena can be found in the experience of phantom limb sensations. This occurrence, the sensation of feeling in amputated limbs, is reported by over 70% of amputees, although the limb is no longer present, they report still experiencing sensations. This is an event that defies typical logic and has been a source of much curiosity within the medical and physiological fields. A mechanical phenomenon is a phenomenon associated with the equilibrium or motion of objects. Some examples are Newtons cradle, engines, and double pendulums, in gemology, a phenomenon is an unusual optical effect that is displayed by a gem. Play-of-color, labradorescence, iridescence, adularescence, chatoyancy, asterism, aventurescence, lustre, group phenomena concern the behavior of a particular group of individual entities, usually organisms and most especially people. The behavior of individuals often changes in a setting in various ways. Social phenomena apply especially to organisms and people in that states are implicit in the term. Attitudes and events particular to a group may have effects beyond the group, in popular usage, a phenomenon often refers to an extraordinary event. The term is most commonly used to refer to occurrences that at first defy explanation or baffle the observer

17.
George Armitage Miller
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George Armitage Miller was an American psychologist who was one of the founders of the cognitive psychology field. He also contributed to the birth of psycholinguistics and cognitive science in general, Miller wrote several books and directed the development of WordNet, an online word-linkage database usable by computer programs. This paper is frequently cited in both psychology and the wider culture and he also won awards, such as the National Medal of Science. Miller started his education focusing on speech and language and published papers on these topics and he started his career at a time when the reigning theory in psychology was behaviorism, which eschewed any attempt to study mental processes and focused only on observable behavior. Working mostly at Harvard University, MIT and Princeton University, Miller introduced experimental techniques to study the psychology of mental processes. He went on to be one of the founders of psycholinguistics and was one of the key figures in founding the broader new field of cognitive science. He collaborated and co-authored work with figures in cognitive science and psycholinguistics. A Review of General Psychology survey, published in 2002, ranked Miller as the 20th most cited psychologist of that era. Miller was born on February 3,1920, in Charleston, West Virginia, the son of an executive at a company, George E. Miller. He grew up only his mother during the Great Depression, attended public school. He relocated with his mother and stepfather to Washington D. C. and was at George Washington University for a year and his family practiced Christian Science, which required turning to prayer, rather than medical science, for healing. After his stepfather was transferred to Birmingham, Alabama, Miller transferred to the University of Alabama and he received his bachelors degree in history and speech in 1940, and a masters in speech in 1941 from the University of Alabama. He had taken courses in phonetics, voice science, and speech pathology, membership in the Drama club fostered his interest in courses in the Speech Department. He was also influenced by Professor Donald Ramsdell, who introduced him both to psychology, and, indirectly through a seminar, to his future wife Katherine James and they married on November 29,1939. He married Margaret Ferguson Skutch Page in 2008, Miller taught the course Introduction to Psychology at Alabama for two years. He enrolled in the Ph. D. program in psychology at Harvard University in 1943 and his doctorate thesis, The Optimal Design of Jamming Signals, was classified top secret by the US Army. After receiving his doctorate, Miller stayed as a fellow at Harvard, to continue his research on speech. He was appointed assistant professor of psychology in 1948, the course he developed on language and communication would eventually lead to his first major book, Language and communication

18.
American philosophy
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American philosophy is the philosophical activity or output of Americans, both within the United States and abroad. I think that in no country in the world is less attention paid to philosophy than in the United States. Most of the operations of the mind, each American appeals to the exercise of his own understanding alone. The American philosophical tradition began at the time of the European colonization of the New World, the Puritans arrival in New England set the earliest American philosophy into the religious tradition, and there was also an emphasis on the relationship between the individual and the community. This is evident by the colonial documents such as the Fundamental Orders of Connecticut. The 18th century saw the introduction of Francis Bacon and the Enlightenment philosophers Descartes, Newton, Locke, Wollaston, both were originally ordained Puritan Congregationalist ministers who embraced much of the new learning of the Enlightenment. Both were Yale educated and Berkeley influenced idealists who became influential college presidents, both were influential in the development of American political philosophy and the works of the Founding Fathers. Then in 1714, a donation of 800 books from England, collected by Colonial Agent Jeremiah Dummer and he now considered what he had learned at Yale nothing but the scholastic cobwebs of a few little English and Dutch systems that would hardly now be taken up in the street. Johnson was appointed tutor at Yale in 1716 and he began to teach the Enlightenment curriculum there, and thus began the American Enlightenment. One of his students for a time was a fifteen-year-old Johnathan Edwards. But each had a different view on the issues of predestination versus freewill, original sin versus the pursuit of happiness though practicing virtue. Jonathan Edwards is considered to be Americas most important and original philosophical theologian, noted for his energetic sermons, such as Sinners in the Hands of an Angry God, Edwards emphasized the absolute sovereignty of God and the beauty of Gods holiness. The non-material mind consists of understanding and will, and it is understanding, interpreted in a Newtonian framework, whatever features an object may have, it has these properties because the object resists. Though Edwards reformed Puritan theology using Enlightenment ideas from natural philosophy, and Locke, Newton, Jonathan Edwards also rejected the freedom of the will, saying that we can do as we please, but we cannot please as we please. According to Edwards, neither good works nor self-originating faith lead to salvation, Samuel Johnson has been called The Founder of American Philosophy and the first important philosopher in colonial America and author of the first philosophy textbook published there. Johnson strongly rejected Calvins doctrine of Predestination and believed people were autonomous moral agents endowed with freewill. His fusion philosophy of Natural Religion and Idealism, which has been called American Practical Idealism, was developed as a series of textbooks in seven editions between 1731 and 1754. His moral philosophy is defined in his college textbook Elementa Philosophica as the Art of pursuing our highest Happiness by the practice of virtue

19.
International Standard Book Number
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The International Standard Book Number is a unique numeric commercial book identifier. An ISBN is assigned to each edition and variation of a book, for example, an e-book, a paperback and a hardcover edition of the same book would each have a different ISBN. The ISBN is 13 digits long if assigned on or after 1 January 2007, the method of assigning an ISBN is nation-based and varies from country to country, often depending on how large the publishing industry is within a country. The initial ISBN configuration of recognition was generated in 1967 based upon the 9-digit Standard Book Numbering created in 1966, the 10-digit ISBN format was developed by the International Organization for Standardization and was published in 1970 as international standard ISO2108. Occasionally, a book may appear without a printed ISBN if it is printed privately or the author does not follow the usual ISBN procedure, however, this can be rectified later. Another identifier, the International Standard Serial Number, identifies periodical publications such as magazines, the ISBN configuration of recognition was generated in 1967 in the United Kingdom by David Whitaker and in 1968 in the US by Emery Koltay. The 10-digit ISBN format was developed by the International Organization for Standardization and was published in 1970 as international standard ISO2108, the United Kingdom continued to use the 9-digit SBN code until 1974. The ISO on-line facility only refers back to 1978, an SBN may be converted to an ISBN by prefixing the digit 0. For example, the edition of Mr. J. G. Reeder Returns, published by Hodder in 1965, has SBN340013818 -340 indicating the publisher,01381 their serial number. This can be converted to ISBN 0-340-01381-8, the check digit does not need to be re-calculated, since 1 January 2007, ISBNs have contained 13 digits, a format that is compatible with Bookland European Article Number EAN-13s. An ISBN is assigned to each edition and variation of a book, for example, an ebook, a paperback, and a hardcover edition of the same book would each have a different ISBN. The ISBN is 13 digits long if assigned on or after 1 January 2007, a 13-digit ISBN can be separated into its parts, and when this is done it is customary to separate the parts with hyphens or spaces. Separating the parts of a 10-digit ISBN is also done with either hyphens or spaces, figuring out how to correctly separate a given ISBN number is complicated, because most of the parts do not use a fixed number of digits. ISBN issuance is country-specific, in that ISBNs are issued by the ISBN registration agency that is responsible for country or territory regardless of the publication language. Some ISBN registration agencies are based in national libraries or within ministries of culture, in other cases, the ISBN registration service is provided by organisations such as bibliographic data providers that are not government funded. In Canada, ISBNs are issued at no cost with the purpose of encouraging Canadian culture. In the United Kingdom, United States, and some countries, where the service is provided by non-government-funded organisations. Australia, ISBNs are issued by the library services agency Thorpe-Bowker

20.
Wikisource
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Wikisource is an online digital library of free content textual sources on a wiki, operated by the Wikimedia Foundation. Wikisource is the name of the project as a whole and the name for each instance of that project, the projects aims are to host all forms of free text, in many languages, and translations. Originally conceived as an archive to store useful or important historical texts, the project officially began in November 24,2003 under the name Project Sourceberg. The name Wikisource was adopted later that year and it received its own domain name seven months later, the project has come under criticism for lack of reliability but it is also cited by organisations such as the National Archives and Records Administration. The project holds works that are either in the domain or freely licensed, professionally published works or historical source documents, not vanity products. Verification was initially made offline, or by trusting the reliability of digital libraries. Now works are supported by online scans via the ProofreadPage extension, some individual Wikisources, each representing a specific language, now only allow works backed up with scans. While the bulk of its collection are texts, Wikisource as a whole hosts other media, some Wikisources allow user-generated annotations, subject to the specific policies of the Wikisource in question. Wikisources early history included several changes of name and location, the original concept for Wikisource was as storage for useful or important historical texts. These texts were intended to support Wikipedia articles, by providing evidence and original source texts. The collection was focused on important historical and cultural material. The project was originally called Project Sourceberg during its planning stages, in 2001, there was a dispute on Wikipedia regarding the addition of primary source material, leading to edit wars over their inclusion or deletion. Project Sourceberg was suggested as a solution to this, perhaps Project Sourceberg can mainly work as an interface for easily linking from Wikipedia to a Project Gutenberg file, and as an interface for people to easily submit new work to PG. Wed want to complement Project Gutenberg--how, exactly, and Jimmy Wales adding like Larry, Im interested that we think it over to see what we can add to Project Gutenberg. It seems unlikely that primary sources should in general be editable by anyone -- I mean, Shakespeare is Shakespeare, unlike our commentary on his work, the project began its activity at ps. wikipedia. org. The contributors understood the PS subdomain to mean either primary sources or Project Sourceberg, however, this resulted in Project Sourceberg occupying the subdomain of the Pashto Wikipedia. A vote on the name changed it to Wikisource on December 6,2003. Despite the change in name, the project did not move to its permanent URL until July 23,2004, since Wikisource was initially called Project Sourceberg, its first logo was a picture of an iceberg

A sense is a physiological capacity of organisms that provides data for perception. The senses and their operation, …

Five senses and the respective sensory organs inherent among Homo sapiens

An allegory of five senses. Still Life by Pieter Claesz, 1623. The painting illustrates the senses through musical instruments, a compass, a book, food and drink, a mirror, incense and an open perfume bottle. The tortoise may be an illustration of touch or an allusion to the opposite (the tortoise isolating in its shell).